Building my own 4in system...What bends do I need?
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Joined: Nov 1999
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From: Coulterville, IL...Currently on Beale AFB, CA
Building my own 4in system...What bends do I need?
I am building my own 4 or 4.5 in system soon, because mufflex does not offer their setup how I want it. Anyway, I was wondering what bends I need to buy to go over the axle and such. Any help would be great.
Thanks
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Black 89 IROC...Mods: 355, 10.5:1 comp, Big Solid Crower Cam, TFS heads, Victor Jr, Holley, and a 5 spd...
Thanks
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Black 89 IROC...Mods: 355, 10.5:1 comp, Big Solid Crower Cam, TFS heads, Victor Jr, Holley, and a 5 spd...
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Joined: Sep 2000
Posts: 6,775
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From: So.west IN
Car: 87 Formula/ 00 Xtreme
Engine: TPI 305/ v6
Transmission: struggling t-5/ 4l60E
Axle/Gears: 3.08/ 3.23
To go from the cat-back you will need 4 90º bends
1-90 cut in half to make 2-45º(not exact 45-45) bends
2-90's to pass over axle
1-90 to go to the muffler
1-90 cut in half to make 2-45º(not exact 45-45) bends
2-90's to pass over axle
1-90 to go to the muffler
Senior Member
Joined: Oct 2000
Posts: 705
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From: Peoria, IL
Car: 1985 Z-28
Engine: a big one
Transmission: 4 spd auto soon to be a 6 speed
be careful, a 4-inch exhaust may sound good, but you could lose alot of low end torque, and you could even lose a lot of power.
Thread Starter
Member
Joined: Nov 1999
Posts: 340
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From: Coulterville, IL...Currently on Beale AFB, CA
I wonder if ace read my sig? hehe
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Black 89 IROC...Mods: 355, 10.5:1 comp, Big Solid Crower Cam, TFS heads, Victor Jr, Holley, and a 5 spd...
------------------
Black 89 IROC...Mods: 355, 10.5:1 comp, Big Solid Crower Cam, TFS heads, Victor Jr, Holley, and a 5 spd...
Senior Member
Joined: Oct 2000
Posts: 705
Likes: 0
From: Peoria, IL
Car: 1985 Z-28
Engine: a big one
Transmission: 4 spd auto soon to be a 6 speed
Sweet setup. And no I did not read the signature, there are so many of them and i probably read most of them so I got tired of reading the same thing over an over again. 
that 4 inch exhaust must sound sweet.
My friend's dad has a 69 chevelle, 396 and a 4 inch exhaust, with side pipes. anyway he doesnt have a muffler on it, and he only got pulled over once, but he never got a ticket. oh yeah he has a "race prepped" engine in it. some circle track engine i think.
that 4 inch exhaust must sound sweet.
My friend's dad has a 69 chevelle, 396 and a 4 inch exhaust, with side pipes. anyway he doesnt have a muffler on it, and he only got pulled over once, but he never got a ticket. oh yeah he has a "race prepped" engine in it. some circle track engine i think.
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